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The surface area of Saturn's moon Mimas is slightly less than the land area of Spain and is composed of water ice with only a small amount of rock. Yet Saturn's resonances with Mimas, and Mimas' resonances with other orbiting satellites are instrumental in the formation of Saturn's rings

European Spacecraft Lands on Comet in Historic Space Feat

The European Rosetta spacecraft's Philae lander aims to be the first probe ever to safely land on a comet. Here's how to land on a spinning ice mountain in space. - Credit: By Karl Tate, Infographics Artist